Background
Dysmorphophobia has been described for more than a century.[1] This psychiatric condition, also termed body dysmorphic disorder (BDD),[2] is marked by a fixation on an imaginary flaw in the physical appearance. In cases in which a minor defect truly exists, the individual with body dysmorphic disorder exhibits an inordinate amount of anguish. Body dysmorphic disorder often is encountered in dermatologic and cosmetic surgery settings.[3] This disorder traditionally has been labeled dysmorphic syndrome. Dysmorphophobic symptoms in a dermatologic setting have been termed dermatological hypochondriasis, and in individuals without apparent cutaneous lesions, the condition is termed dermatologic nondisease.[4]
Body dysmorphic disorder results in significant suffering, occupational dysfunction, and/or social malaise. Individuals with body dysmorphic disorder have variable degrees of awareness concerning the psychiatric nature of the illness. Many people continue to agonize about an imagined defect although they are cognizant that their concerns are excessive. Other people with dysmorphophobia are regarded as delusional and have no insight into their unusual behavioral tendencies.[5]
Pathophysiology
Multidimensional Body-Self Relations Questionnaire results showed body dysmorphic disorder participants differed from population norms in a number of important aspects of body image.[6] Interpersonal concerns about rejection based on appearance should be included in investigations of excessive body image concerns.[7]
Dysmorphophobia may have a genetic component.[8] A twin study from the St Thomas UK twin registry suggested body dysmorphic disorder may be a heritable trait, with nonshared environmental factors also playing a significant role in its causation.
Epidemiology
Frequency
United States
As much as 1% of the population may have dysmorphophobia.[9] One study demonstrated that the prevalence of body dysmorphic disorder appears to be significantly higher among people receiving dermatologic care. Of people receiving dermatologic care, 11.9% were diagnosed with this condition.[10]
International
BDD is a relatively common disorder among individuals seeking aesthetic surgery in Iran, being seen in about a quarter of those seeking rhinoplasty.[11]
In São Paulo, Brazil the prevalence of BDD in dermatologic patients was evaluated in a sample of 150 patients in a cosmetic group, 150 patients in a general dermatology group, and 50 control subjects.[12] The prevalence in the cosmetic group was 14%, compared with 6.7% for the general group and 2% for the control group.
Mortality/Morbidity
People with dysmorphophobia frequently develop major depressive episodes and are at risk for suicide.[13] They also may exhibit violent behavior toward their treatment providers.
In many cases, individuals with body dysmorphic disorder experience drastic social and occupational dysfunctions that may progress to the point of social isolation. Embarrassment and fear of being scrutinized or mocked cause these individuals to avoid social situations and intimate relationships. Often victims of poor self-image, these individuals do not demonstrate sufficient social skills and frequently are single or divorced. People with dysmorphophobia may believe firmly that a marked change in their perceived body defect is a prerequisite to their happiness and well-being.
Sex
The male-to-female ratio for dysmorphophobia appears to be equal. Males and females tend to focus on different types of perceived defects.[14, 15]
Age
The onset of dysmorphophobia usually occurs in the teenage years; however, average age in people receiving dermatologic care is 33.7 years.
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